Jeep engineers toiled to take the 2007 Wrangler’s increased size and make it work better on boulders, in ditches and on gravel – you know, the places where a Wrangler belongs. The result, according to Jeep, is a Wrangler that is better on the road and off, thanks to a wider track and a longer wheelbase, and improved breakover angles. Overall, the 2007 Jeep Wrangler has better ground clearance, larger wheels and tires, is about five inches bigger front to back and side to side, and is powered by an improved 3.8-liter V6 engine.